CN108601711A - Optical diffuser particle - Google Patents

Optical diffuser particle Download PDF

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Publication number
CN108601711A
CN108601711A CN201780007540.4A CN201780007540A CN108601711A CN 108601711 A CN108601711 A CN 108601711A CN 201780007540 A CN201780007540 A CN 201780007540A CN 108601711 A CN108601711 A CN 108601711A
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China
Prior art keywords
pigment
particle
soft focus
oxide
composition
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Granted
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CN201780007540.4A
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CN108601711B (en
Inventor
安托尼·罗雷尔
乔纳森·多勒
凯里·安·多波斯
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Sun Chemical Corp
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Sun Chemical Corp
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/0241—Containing particulates characterized by their shape and/or structure
    • A61K8/0254—Platelets; Flakes
    • A61K8/0258—Layered structure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
    • A61Q1/02—Preparations containing skin colorants, e.g. pigments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/0241—Containing particulates characterized by their shape and/or structure
    • A61K8/0245—Specific shapes or structures not provided for by any of the groups of A61K8/0241
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/0241—Containing particulates characterized by their shape and/or structure
    • A61K8/025—Explicitly spheroidal or spherical shape
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/0241—Containing particulates characterized by their shape and/or structure
    • A61K8/0254—Platelets; Flakes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/25—Silicon; Compounds thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/41—Particular ingredients further characterized by their size
    • A61K2800/412—Microsized, i.e. having sizes between 0.1 and 100 microns
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/42—Colour properties
    • A61K2800/43—Pigments; Dyes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/60—Particulates further characterized by their structure or composition
    • A61K2800/61—Surface treated
    • A61K2800/62—Coated
    • A61K2800/621—Coated by inorganic compounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/60—Particulates further characterized by their structure or composition
    • A61K2800/65—Characterized by the composition of the particulate/core
    • A61K2800/651—The particulate/core comprising inorganic material

Abstract

A kind of soft focus composition includes particle.The particle includes the base material with coating of metal oxides.The coating of metal oxides covers about the 50% to about 75% of the surface area of the base material.The span of the particle is about 0.1 to about 2.1.About 50% to about 75% particle is strip, and remaining is at least one different shape.This soft focus composition can be used in cosmetics and personal care formulations covering microgroove and flaw to assign soft focus effec on the skin, while the natural gloss of skin being allowed to show.

Description

Optical diffuser particle
Cross reference to related applications
The application requires the temporary patent application sequence number 62/280 of the same title submitted on January 20th, 2016 hereby, The disclosure of 910 equity, the application is incorporated herein in its entirety by reference.
Background technology
In cosmetic applications, needs the appearance by covering or obscuring microgroove and wrinkle while reducing due to pigmentation Excessively or hypopigmentation caused by any irregular colour and make skin have smooth appearance material.Described effect quilt Referred to as " soft focus (soft focus) ".In the presence of if the dry colour for assigning soft focus characteristic and wire feeding and cosmetics system is claimed Agent, including the materials such as boron nitride and elastomer silicone resin particle.In general, using the blend of pigment, such as US 6, Described in 511,672 and US 7,709,013.
In certain application (US 5,320,834；US 6,511,536；US 6,511,672；US 2005/0220739；US 2008/0219940；And US 7,709,013) in have proposed using layered pigments as soft focus pigment.Layered pigment is by applying It is covered with the smooth of one or more layers metal oxide, strip or spherical base material composition.These pigment can have a large amount of diffusion Light transmission.The significant drawback of lamellar platelets shape pigment is that they make skin appear to have gloss, to make wrinkle and flaw more Obvious and non-fuzzy.The major defect of Multi-layer spherical pigment is that they are difficult to high yield manufacture, therefore them is made to be limited to high price In value, expensive application.
Many pigment for assigning soft focus are made of tediously long and difficult fabrication schedule, very so as to cause price It is high.Their application is limited in high-end professional face cream and lotion by this, and them is made to cannot be used for as masses such as milky lotion In market product.Therefore, need can be used for the soft focus pigments system of the imparting soft focus in milky lotion in personal care industries.
Invention content
A kind of soft focus composition includes particle.The particle includes the base material with coating of metal oxides.The metal Oxide coating covers about the 50% to about 75% of the surface area of base material.The span of the particle is about 0.1 to about 2.1.About The particle of 50% to about 75% is strip, and remaining is at least one different shape.
From reference to the drawings and their description, these and other targets and advantage will become obvious.
Description of the drawings
The description of the drawings embodiment for being incorporated to this specification and forming part of this specification, and with it is given above The principle of the disclosure is explained in the detailed description of general remark and embodiment described below together.
Fig. 1 is calculated SFF of a variety of materials under each loadRValue and SFFTThe curve graph of relationship between value.Curve Region near figure centre is related to most apparent soft focus effec.There, diffusion and total transparency are able to maximize and instead The homogenous diffusion performance for penetrating light is most natural.Curve illustrates, not SFFROr SFFTIndividually but the ratio of two parameters generates Desired soft focus effec.
Fig. 2 is scanning electron microscope (SEM) image of comparative example 5, shows the small pieces and not under 5kx magnifying powers The mixture of rule particle.
Fig. 3 is the SEM image of comparative example 5, the mixing of the small pieces and irregular particle that are illustrated under 1kx magnifying powers Object.
Fig. 4 is SEM image of the embodiment 2 under 1kx magnifying powers.
Fig. 5 is SEM image of the embodiment 2 under 5kx magnifying powers.
Fig. 6 is the SEM of the particle in embodiment 2, uncoated (dark color) region with particle and coating (light color) area EDX (energy dispersion X-ray spectroscopy) spectrum in domain.
Specific implementation mode
Surprisingly, it was found that the composition comprising the irregular particle for being partially coated with metal oxide is with especially high Soft focus characteristic.This composition can be used in personal care product to provide desired soft focus characteristic to cover microgroove and wrinkle Line.
This soft focus composition need not obtain the correct of optical characteristics using a variety of particles or pigment for soft focus effec Mixing.In some embodiments, in the composition using single particle or grain type with optical characteristics.Only have Soft focus effec will not be usually found in the homogeneous soft focus system of single particle or pigment with optical characteristics.Existing composition makes Soft focus characteristic (US 6,511,672 is realized with the blend of material；US 2005/0048016；US 2005/0074473；US 2005/0220739；US 2008/0219940；And US 7,709,013).For example, US 6,511,672 describe it is a kind of with The multilayer platelet pigment that another platelet pigment is blended, the another kind platelet pigment have used smaller, spheric granules processing with shape At irregular surface.US 6,511,672 describes one kind down to high refractive index multilayer particle, is total to transparent sphere polymer It mixes to form soft focus effec.In these cases, using multilayer, platelet-shaped pigments and other materials with irregular surface It combines to form soft focus effec, i.e., cannot achieve soft focus in a non-mixed system.
Soft focus composition includes particle.The particle includes the base material with coating of metal oxides.The metal oxidation Object coating covers about the 50% to about 75% of the surface area of base material.The average surface roughness of the particle is about 1nm to about 50nm.The particle of about 50% to about 75% is strip, and remaining is at least one different shape.
The coating of metal oxides of particle does not cover the whole surface of base material.Coating can cover about the 50% of the surface of base material To about 75%, such as about 30% to about 85%, about 50% to about 75% and about 60% to about 75%.In some embodiments In, the refractive index of metal oxide is more than 2.
Coating of metal oxides can be single-layer or multi-layer.If there is multiple layers, they can be identical metal oxide Or different metal oxide.In addition, metal oxide layer can be further coated with the layer of other materials.In some embodiments In, metal oxide layer be total particle quality about 5 to about 75%, such as about 5% to about 75%, about 10% to about 50% and About 15% to about 30%.The thickness of coating of metal oxides is about 10nm to about 1000nm, such as about 30nm to about 1000nm, about 30nm to about 600nm and about 40nm to about 150nm.
The example of metal oxide includes but not limited to：Aluminium oxide, bismuth oxide, cerium oxide, chromium oxide, iron oxide (II), Iron oxide (II, III), iron oxide (III), magnesium silicate, silica, titanium dioxide, zinc oxide, zirconium oxide and its mixture or Alloy.
Base material is small pieces and at least one mixture of different shapes.The example of other shapes includes but unlimited In：Orbicule, cylinder, cone, polygon, potato-like, octahedron, hedgehog and starlike.About 50% to about 75% Particle be strip, it means that they are relatively thin on a dimension (thickness), but larger in other two dimensions.
The span of particle is about 0.1 to 2.1, such as about 0.5 to about 2.0 and about 1.0 to about 2.0.Span is calculated as (d90-d10)/d50.The value of d50 (or median particle) is the granularity at the 50th percentile of size distribution.The value of d90 is granularity Granularity at 90th percentile of distribution.The value of d10 is the granularity at the 10th percentile of size distribution.Use Cilas 1064L laser-diffractometers Particle Size Analyzers measures size distribution.For the sample for preparing to be measured, by the sample that 100mg is to be measured Product are dispersed in by being ultrasonically treated 5 minutes in the deionized water of 9.9g.Sample is added to grain size analysis using standard agreement In instrument.Particle Size Analyzer provides the distribution of entire sample, including d10, d50 and d90.
Ranging from about 1 μm to about 60 μm of the median particle d50 of particle, such as about 1 μm to about 30 μm and about 1 μm to about 15μm。
The example of base material includes but not limited to fumed aluminium oxide, aluminium oxide, hydrated alumina, aluminium hydroxide, alumina silicate Hydroxide, plate-like aluminum oxide, barium sulfate, bismuth oxychloride, boehmite, boron sikicate aluminum calcium, calcium carbonate, clay, collagen, silicon It is glue, corundum, diatom, diatom ooze, diatomite, gibbsite, guanine, graphite, hexagonal boron nitride, kaolin, magnesium silicate, natural With synthetic mica, micaceous iron oxide, pyrophyllite, silica, sericite, talcum and its mixture.In some embodiments, base material Selected from kaolin, talcum, diatomite, sericite and calcium carbonate.In some embodiments, base material be selected from diatomite, talcum, Mica, aluminium oxide, kaolin, calcium carbonate, barium sulfate.
In some embodiments, one or more additives are blended with soft focus composition.The function of these additives Example include but not limited to improve dispersibility, improve feel, improve hydrophobicity, improve oil absorption etc..In addition, the additive The surface charge properties of soft focus composition can be modified as cation, anion, neutrality or neutral.
It has been found that particle uniformly scatters light over while limiting the ability of the directly amount of reflection and transmitted light in all directions Generate soft focus effec.Soft focus effec is very desired in personal nursing, cosmetics or skin care formulation, because it can be Young illusion is assigned when in skin care formulation.
When will include SFFTIt is about 0.35 to about 0.7 and SFFRIt is that the composition of the particle of about 0.4 to about 0.7 is applied to table When face, film or optical filter, soft focus effec is formed.It has been found that as the transmission soft focus factor (SFF of particleT) and reflection soft focus The factor (SFFR) within this range when, include the particle composition formed soft focus effect.Although shape has been described in other people At soft focus effec, but it may be not reach required SFFRAnd SFFRIt is required that different or weaker optical effects.
In addition, the composition realizes this horizontal soft focus and synthetic mineral material is not used.Other people (US 6, 511,536；US 2008/0219940；And US 7,709,013) used polymethyl methacrylate (PMMA), polyethylene, The synthetic polymer of polyamide and/or silicone elastomer forms soft focus effec.However, these materials and non-natural origin, And it is not biodegradable.In addition, these synthesis " microballon " are unacceptable, because they may be continuously present in environment, And it is not easy to decompose and environment is caused to gather.
Described soft focus effec has the desired amount of diffusing transmission and reflected light, i.e., in the direction far from incident beam direction The light of upper transmission.In some embodiments, diffusing transmission and reflected light are equal over all angles.If soft focus composition has High diffusing transmission amount but diffusing reflection amount is low, then it can be glossiness but can cause attention to wrinkle and flaw.If soft focus Composition has high diffusing reflection amount but diffusing transmission amount is low, then soft focus composition can cover or the Natural color of skin whitening, makes it Seem forgery or false.
Formula 1 calculates the soft focus factor of the transmissison characteristic for assessing soft focus composition.Soft focus composition by by its It is coated on the Mylar transparent bodies and is measured in the paint film of formation.
SFFT=%TTOT* %TDIF(formula 1)
The transmission soft focus factor is SFFT.It is %T in the overall average transmittance of 400nm to the display between 700nm wavelengthTOT； It is defined as total combination transmittance of minute surface (within 8 ° of incident beam) and diffused light.In the wavelength of 400nm to 700nm Between the overall average diffusing transmission ratio (do not include specular transmittance) of display be %TDIF.With big SFFTMaterial show them Maximization combination with total transmittance and diffusing transmission ratio, it means that measured material is for good soft focus effec It is too opaque.
Formula 2 calculates the soft focus factor of the reflective character for assessing soft focus composition.Soft focus composition pass through by It is measured in its paint film for stretching formation on the black and white scraps of paper (for example, Byk Chart 2811).
SFFR=L*75/L*15 (formula 2)
It is SFF to reflect the soft focus factorR.With the mirror-reflection under 45 ° of incident light beam angles at 75 ° CIELab brightness be L* 75.With the mirror-reflection under 45 ° of incident light beam angles at 15 ° CIELab brightness be L*15.With big SFFRMaterial show Under all measurement angles, generally it is uniformly distributed in the presence of what is diffused.
In some embodiments, when being tested with 10% load in solvent type cellulose acetate-butyrate priming paint When, the SFF of soft focus compositionTRanging from about the 0.35 to about 0.7 of value.In some embodiments, when in solvent type acetic acid fourth When being tested with 5% load in acid cellulose priming paint, the SFF of soft focus compositionRValue ranging from about 0.4 to about 0.7.It is clear Chu, composition have these SFF when being tested with 10% load in solvent type cellulose acetate-butyrate priming paintTWith SFFRValue, but can be used together with different loads and with other base-materials.Exactly belong to the SFF within the scope of theseRAnd SFFTCombination Provide the appropriately combined soft focus composition with covering power and transparency.
Human skin surface has been characterized in that microgroove, wrinkle, freckle and/or flaw.Have too many in any of these features Feature can be considered as defect, it is therefore desirable to which interim solution covers these defects to give man-year light impression.One kind is used for The technology for covering up these defects assigns the feature of commonly referred to as soft focus.Soft focus is a kind of optical effect, and nibs is made to become mould Paste, the smooth appearance for assigning skin gloss usually associated with youth.
Soft focus composition can be used in personal nursing, cosmetics or skin care formulation to assign soft focus effec on the skin To cover microgroove and flaw, while the natural gloss of skin being made to show.
In some embodiments, soft focus composition is incorporated by any types with the optimal load for showing maximum soft focus Personal nursing, in cosmetics or skin care formulation.It can be by drawing SFFRWith SFFTComparison diagram determine in selected mediator The optimal load of soft focus composition, wherein SFFRAnd SFFTIt is x-axis and y-axis respectively.When describing these under different pigment loads When value, occur peak value in drawing, indicates the ideal load of the used soft focus composition for soft focus.This phenomenon is in Fig. 1 In graphically show.In one embodiment, relative to personal nursing or the total weight of cosmetic formulations, soft focus pigment body The ranging from about 0.1 weight % to about 20.0 weight % of the load of system.
The example of personal care formulations include but not limited to acne therapeutic agent, face cream, skin-care gel, hand lotion, skin cream, Moisturizer, water-in-oil formulations, oil-in-water emulsion formulations, cellulite treatment agent, body sprays, shampoo, conditioner, molded product, Hair jelly, styling lotion, primer, mousse, gel, brilliantine, wax, dry-cleaning shampoo, essence, oil, hair dye, root of hair polishing production Product, deodorant, antiperspirant, sun-screening agent, help and shine breast, skin-whitening agents, lip gloss, anti-aging cream, eye essence scalp curing agent Element, body care oil, cleansing product, shaving cream, shaving gel and eyeshield frost.
The example of cosmetic formulations includes but not limited to foundation cream, muffin, loose powder, bronzer, concealer, eye shadow, eye Line, lipstick, lip gloss, blush, kermes, face powder and finger/toenail oil.
In some embodiments, cosmetic formulations include the total weight relative to skin care formulation, and load range is The soft focus composition of about 0.1% to about 90% (such as 0.1% to about 20%).Cosmetic formulations may include following one or more Component type：Liquid diluent, powder diluent, chelating agent, wetting agent, rheology modifier, emulsifier, coemulsifier, increasing Effect agent, UV filtering agents, thickener, preservative, removes surfactant, detergent, conditioner, stabilizer, stabilizes and gather emollient Close object, filler, structural agent, neutralizer, vitamin, minerals, pearling agent, plant extracts, antioxidant, sealer, skin Feel reinforcing agent, powdered filler, wax, oil, mineral oil, brightener, aromatic, adhesive, dry adhesives, dyestuff, inorganic face Material, organic pigment, effect pigment, pearlescent pigment and combinations thereof.
In some embodiments, soft focus pigments system can be used to come to all types of skin quality, the colour of skin, blackening and flaw Assign soft focus effec.
In some embodiments, skin care formulation includes the total weight relative to skin care formulation, load range It is the soft focus composition of about 0.1% to about 20%.Skin care formulation can contain following one or more component types：Dilution Agent, thickener, rheology modifier, emollient, film forming agent, sealer, stripping element, filler, neutralizer, emulsifier, structural agent, Counter-stimulus, anti-acne drug, solvent, moisturizer, skin conditioning agent, coemulsifier, synergist, aromatic, plant extract Object, brightener, ultra-violet light filtering agents, UV light stabilizing agent, detergent, conditioner, helps and shines agent, wetting agent, mineral preservative Oil, godied oil, wax, amino acid, protein, enzyme, vitamin, minerals, chelating agent, antioxidant, foaming agent, disappears at recovery Infusion, dyestuff, inorganic pigment, organic pigment, effect pigment, pearlescent pigment and other additions well known by persons skilled in the art Agent and ingredient.
In some embodiments, personal nursing, cosmetic formulations or skin care formulation also may include light diffusion or have Color pigment.Light diffusion and colored pigment is discussed below.
In some embodiments, soft focus composition is incorporated into ink or coating.It is formed by ink or coating may The light scattering effect for being considered as desirable can be increased.The soft focus effec of coating or ink can form multi-effect, including but unlimited In opacifiation, delustring, hazes and extend.The example of ink and coating includes but not limited to car paint, the clear painting of protectiveness Material, indoor architectural paints, outdoor architecture coating, powdery paints, industrial coating, base gravure ink, flexographic plate printing ink, paste-like ink, Energy-curable (UV or EB) ink etc..In addition, soft focus composition can be applied in combination with effect pigment or organic pigment.In some realities It applies in scheme, ink or coating include the soft focus composition of about 0.1 weight % to about 50 weight %, and such as about 1 weight % is to about 40 weight %.
Coating or printing ink composition are obtained by the way that soft focus composition to be blended with coating resin.Coating resin is dispersed in In solvent, or it can be used as dry powder, such as in the case of powdery paints.The example of coating resin includes but not limited to asphalt mixtures modified by epoxy resin Fat, polyester resin, polyurethane resin, polyvinyl resin, celluosic resin, polyamide, nitrocellulose resin, acrylic acid tree Fat, alkyd resin, fluoride resin etc..
In some embodiments, coating or printing ink composition can be with one or more other light diffusions or colored pigment It is used in combination.The example of another light diffusion particles includes strip boron nitride, tabular alumina, ball-aluminium oxide, spherical shape two Silica, pearlescent pigment, Nylon-12, polyethylene, polymethyl methacrylate, polystyrene, silicones cross-linked polymer Grain, titanium dioxide, zinc oxide and its mixture.If using other colored pigment, it can be organic pigment, inorganic Pigment, metallic pigments, pearlescent pigment and its mixture.
The example of other colored pigment includes organic pigment, such as azo pigments, polycyclic pigment, anthraquinone pigment (including Monoazo pigment, disazo pigment, disazo condensation pigment), naphthol pigment, benzimidazolone pigment, isoindolenone pigments, Isoindoline pigment, metal complex pigment, quinacridone pigment, perylene pigment, charcoal blacks, phthalocyanine color, purple ring Ketone pigment, diketo-pyrrolo pyrrole pigments, thioindigo color, anthracene pyrimidine pigment, flavanthrone pigment, anthanthrone pigment, two Oxazine pigment, triaryl carbon pigment, quinophthalone pigments and combinations thereof.
The example of other colored pigment includes inorganic pigment, such as titanium oxide, iron oxide, vanadium oxide, chromium oxide, oxidation Manganese, tungsten oxide, cadmium sulfide, zinc sulphide, vulcanization cadmium mercury, iron sulfide, aluminosilicate, aluminium oxide, cerium oxide, spinel pigments, six Lanthanum boride and its mixture or alloy.
The example of other colored pigment includes metallic pigments.In some embodiments, metallic pigments are strips, Ranging from about 1 μm to about 150 μm of diameter (d50).The example of metal in strip metallic pigments include but not limited to aluminium, Copper, iron, stainless steel, zinc, silver, titanium, gold, magnesium, zinc-copper alloy, Zn-Al alloy, zinc-magnesium alloy, silvered glass piece and its mixing Object and alloy.
The example of other colored pigment includes pearlescent pigment.Pearlescent pigment includes transparent nonmetallic strip base material, There are one the coated substrates or multiple layers for including the metal oxide with refractive index.Pearlescent pigment can be single layer or more Layer, and there are under black background when observation interference colours.The example of the interference colours of pearlescent pigment include but not limited to silver color, The shade of yellow, gold, cyan, magenta, red, blue, green, purple and aforementioned color.
The example of the nonmetallic strip base material of pearlescent pigment especially includes but not limited to natural mica, synthetic mica, chlorine Bismuth oxide, graphite, aluminium oxide, micaceous iron oxide, perlite, silica, titanium dioxide-coated mica and iron oxide-coated Mica.The size of strip base material is not important and depends on the final use of pigment.In general, strip base material is straight Diameter may range from but be not limited to about 1 μm to about 500 μm, and the thickness range of strip base material can be but be not limited to about 5nm to about 1 μm.
The example of the metal oxide of nonmetallic small plate substrate for coating pearlescent pigment includes but not limited to titanium dioxide Silicon, titanium dioxide, zinc oxide, zirconium dioxide, tin oxide, ceria, vanadium oxide (IV), manganese oxide, lead oxide, chromium oxide, Iron oxide, aluminium oxide, tungsten oxide and its mixture and alloy.In some embodiments, coating includes and appoints in aforesaid oxides A kind of what hydrous oxide.In some embodiments, coating is the doping oxide of any type in aforesaid oxides. In some embodiments, metal oxide layer is colourless.The variable thickness of metal oxide layer, but must at least partly thoroughly It is bright.In some embodiments, the thickness range of metal oxide layer is about 20nm to about 350nm.
In some embodiments, including the coating of soft focus composition also includes additive selected from the following：Crosslinking agent, Water, organic solvent, interfacial agent, curing agent, ultra-violet absorber, thickener, corrosion inhibitor and its mixture.
In some embodiments, including the ink of soft focus composition can be that solvent type, aqueous, heat curing type or energy can Cured printing ink.Including the packaging ink of soft focus composition can be used for colouring package interior, outer package or both.In some realities It applies in scheme, including the ink of soft focus composition can be flexographic plate printing ink, silk-screen ink, paste-like ink, sheet-fed ink, energy Measure cured printing ink, base gravure ink or jetted ink.
Although the disclosure is shown by describing several embodiments, although and illustrative embodiment it is in considerable detail Ground describes, but the applicant is not intended to limit or be limited in any way this kind of details by scope of the appended claims. Those skilled in the art can be readily conceivable that other advantage and modification.
Embodiment
Embodiment 1：
In the 1L reactors of jacketed, the fine cosmetics diatomite of 22g (Imercare 266D, Imerys) is disperseed It is stirred in 151g isopropanols and at 400RPM.Tetra- butanol titaniums of 49.9g are added to this slurries.Reactor is heated to back It flows, and slowly added 3% NH with 0.2mL/ minutes4OH aqueous solutions (25.6g).Once addition is completed, under reflux will be molten Liquid is stirred for one hour.Hereafter, slurries are filtered, are washed with isopropanol, and the dry a few hours at 60 DEG C.The white of free-flowing Powder is generated.
Embodiment 2：
In the 1L reactors of jacketed, by fine cosmetics talcum (MP1538, the Minerals of 37.5g Technologies it) is dispersed in 220g deionized waters.Slurries are stirred at 500RPM and are heated to 80 DEG C.With 10% HCl the pH of slurries is adjusted to 1.8.Once reaching the temperature, just with the TiOCl of 0.2mL/ minutes addition 50g 15%2 HCl solution.Individually but simultaneously, 7.5% NaOH solution is added to maintain 1.8 pH.Once addition is all TiOCl2, just stop addition NaOH, and slurry be stirred for 1 hour.Slurries are filtered and rinse with deionized water and at 60 DEG C It is dried overnight.The white powder of free-flowing is generated.
Embodiment 3：
In the 1L reactors of jacketed, by fine cosmetics talcum (MP1538, the Minerals of 20g Technologies it) is dispersed in 220g deionized waters.Slurries are stirred and heated to 80 DEG C at 500RPM.With 10% H2SO4The pH of slurries is adjusted to 1.8.Once reaching the temperature, with the TiO (SO of 0.2mL/ minutes addition 53.3g 15%4) H2SO4Solution.Individually but simultaneously, 7.5% NaOH solution is added to maintain 1.8 pH.In addition whole TiO (SO4) Later, stop addition NaOH, and slurry be stirred for 1 hour.Deionized water is first used, is then filtered with ethyl alcohol and rinses slurries simultaneously And it is dried overnight at 60 DEG C.After drying, material is calcined 3 hours at 500 DEG C.Automatic flowing white powder is produced It is raw.
Comparative example 4
Commercial talcum (MP1538, Minerals Technologies).
Comparative example 5
By closely mix 7.5g embodiments 5 and 2.5g embodiments 9 blend is prepared up to uniformly.
Comparative example 6
Commercial product SunMica Fine White (sun Chemical Corporation), this is TiO2Coated mica.
Comparative example 7 (non-laminar pigment)
Commercial product Tr é s BN 3016 (company of Saint-Gobain).
Comparative example 8 (non-laminar pigment)
Commercial product T#7071TiO2(Cronus company).
Comparative example 9：
In the 1L reactors of jacketed, the thick talcums of 37.5g (Microtalc BP-210) are dispersed in 220g deionizations In water.Slurries are stirred at 500RPM and are heated to 80 DEG C.The pH of slurries is adjusted to 1.8 with 10% HCl.Once The temperature is had reached, just with the TiOCl of 0.2mL/ minutes addition 50g 15%2HCl solution.Individually but simultaneously, it adds 7.5% NaOH solution is to maintain 1.8 pH.Once having added all TiOCl2, just stop addition NaOH, and slurry be stirred for 1 hour.Slurries are filtered with deionized water and are rinsed and dried overnight at 60 DEG C.The free-flowing white powder of generation is almost There is no soft focus effec.
Embodiment 10：Assess the optical characteristics of pigment
Preceding embodiment is dispersed in solvent type cellulose acetate-butyrate priming paint, load 1%, 2.5%, 5% and 10% (w/w).These paint vehicles are drawn into monochrome test chart paper (Byk Chart using Byrd (Byrd) applicator of 1.5mil 2811) on.Other extraction is carried out in mylar sheet.Using X-Rite MA-98 spectrophotometers paperboard black part Divide upper measurement five character datas.
Directly or indirectly transmittance is measured, using the sample extracted on Mylar thin slices, and uses X-Rite Color i7 measure total transmittance and direct transmittance in the wave-length coverage of 400nm to 700nm.By from total transmittance (%TTOT) direct transmittance is subtracted to calculate diffusing transmission ratio (%TDIF).SFF is calculated using equation 1-2TAnd SFFR。
Table 1 shows the SFF of each material under 10% (w/w) loadTAnd SFFRValue.Embodiment 1-4 shows SFFTWith SFFRValue is respectively in the range of about 0.35 to about 0.6 and 0.4 to about 0.7.Comparative example 4-6 and 8-9, which do not have, belongs to institute SFF in the open scopeTAnd SFFRValue.Finally, embodiment 1-3 is similar with the non-laminar pigment displays of comparative example 7.
Table 1：The SFF of film under 10% (w/w) loadTAnd SFFRValue
Embodiment SFFT SFFR d10 D50 D90 Span
Embodiment 1 0.49 0.50 3.3 14.3 26.9 1.7
Embodiment 2 0.41 0.61 1.7 5.0 11.2 1.9
Embodiment 3 0.46 0.58 1.5 4.9 11.2 2.0
Embodiment 4 (comparison) 0.31 0.16 3.3 9.5 18.7 1.6
Embodiment 5 (comparison) 0.45 0.81 0.3 6.9 18.5 2.6
Embodiment 6 (comparison) 0.11 0.24 4.5 9.3 17.0 1.4
Embodiment 7 (comparison) 0.57 0.49 7.0 20.3 45.3 1.9
Embodiment 8 (comparison) 0.25 0.94 0.3 1.1 3.0 2.4
Embodiment 9 (comparison) 0.52 0.29 3.5 22.1 82.0 3.6
Fig. 1 shows the calculated SFF of embodiment under different pigment loading capacitiesTValue and SFFRRelationship between value.From curve Figure is it is clear that not SFFTOr SFFRIndividually but the ratio of two parameters generates desired soft focus effec.Strong reflection is unrestrained Penetrate light and with the SFF higher than preferred scopeRThe material of value become on the skin it is opaque just look at it is unnatural.Compared to it Under, there is the SFF less than preferred scopeRThe material of value is usually more transparent, but the reflected light on minute surface direction, to generate not certainly Right, glossiness appearance.Soft focus composition has the transparency of good diffusing reflection and height.For SFFTFor value, It is also such.Highly transparent and with higher than preferred scope SFFTThe material of value will not be by light reflection to reduction surface blemish institute The degree needed.Alternatively, without diffusing transmission and with the SFF less than preferred scopeTThe material of value will not make light suitably mould Paste and scattering.
Embodiment 11：Personal care formulations
Soft focus composition is formulated into personal care formulations.The formula of preparation is described in table 2.Material presses institute under stiring The addition of row sequence is until uniformly.The milky lotion for reducing wrinkle is generated.These lotions are surveyed on BIOSKIN plates BP-EV1 Examination, in different degrees of wrinkle intensity Imitating skin and wrinkle.Wrinkle intensity scale is common skin pattern 1 to extreme flesh Skin texture and wrinkle 6.Table 3 shows the maximum wrinkle intensity that the lotion containing pigments system is covered.
Table 2：Personal care formulations
Table 3：The maximum wrinkle intensity that lotion containing pigments system is covered
Soft focus pigments system Wrinkle covering power
Embodiment 2 5
Embodiment 4 (comparison) 1
Embodiment 7 (comparison) 4
These embodiments are applied on BIOSKIN plates in the form of transparent membrane to check wrinkle covering power.Comparison is implemented Example 5 and 8 leaves even if the still visible opaque film after lotion drying, to form unnatural appearance.Other pigment Opacity may actually cause people to dermatoglyph rather than cover flaw required effect concern.By this Mode, soft focus composition are performed better than than previous soft focus material, same to cover skin blemishes by providing a kind of composition When assign natural look, it is more natural to allow to generate on the skin without bright luster but as seen in layered pigments Blur effect.
The those skilled in the art benefited from the teachings of the present invention content set forth above can make it numerous modifications. These modifications should be considered as being covered by the scope of the present invention stated in appended claims.

Claims (16)

1. a kind of soft focus composition comprising particle, wherein the particle includes the base material with coating of metal oxides；
The wherein described coating of metal oxides covers about the 50% to about 75% of the surface area of the base material；
The span of the wherein described particle is about 0.1 to about 2.1；And
Wherein about 50% to about 75% particle is strip, and remaining is at least one different shape.
2. soft focus composition as described in claim 1, wherein when in solvent type cellulose acetate-butyrate priming paint with 10% When load is tested, the SFF of the particleTIt is about 0.35 to about 0.7 and SFFRIt is about 0.4 to about 0.7.
3. the soft focus composition as described in any one of claim 1 to 2, wherein the base material is selected from fumed aluminium oxide, oxidation Aluminium, hydrated alumina, aluminium hydroxide, aluminum silicate hydroxide, barium sulfate, bismuth oxychloride, boehmite, boron sikicate aluminum calcium, carbon Sour calcium, clay, collagen, silica gel, corundum, diatom, diatom ooze, diatomite, gibbsite, guanine, graphite, six sides nitridation Boron, kaolin, magnesium silicate, natural and synthetic mica, micaceous iron oxide, pyrophyllite, silica, sericite, talcum and its mixture.
4. soft focus composition as claimed any one in claims 1 to 3, wherein the median particle d50 of the particle is about 1.0 μm to about 60 μm.
5. soft focus composition according to any one of claims 1 to 4, wherein the particle is described at least one different Shape includes orbicule, cylinder, polygon, potato-like, octahedron, hedgehog and starlike particle.
6. the soft focus composition as described in any one of claim 1 to 5, wherein the coating of metal oxides include selected from Under layer：Aluminium oxide, bismuth oxide, cerium oxide, chromium oxide, iron oxide (II), iron oxide (II, III), iron oxide (III), silicic acid Magnesium, silica, titanium dioxide, zinc oxide, zirconium oxide and its mixture or alloy.
7. such as soft focus composition according to any one of claims 1 to 6, wherein the coating of metal oxides accounts for total particle matter About the 5% to about 75% of amount.
8. the soft focus composition as described in any one of claim 1 to 7, wherein the thickness of the coating of metal oxides is about 10nm to about 1000nm.
Also include pigment 9. such as soft focus composition described in any item of the claim 1 to 8.
10. soft focus composition as claimed in claim 9, wherein the pigment is selected from azo pigments, polycyclic pigment, anthraquinone face Material, disazo pigment, disazo condensation pigment, naphthol pigment, benzimidazolone pigment, isoindolenone pigments, isoindoline Pigment, metal complex pigment, quinacridone pigment, perylene pigment, charcoal blacks, phthalocyanine color, purple cyclic ketones pigment, two Ketopyrroles and pyrrole pigment, thioindigo color, anthracene pyrimidine pigment, flavanthrone pigment, anthanthrone pigment, triazine dioxin pigments, Triaryl carbon pigment, quinophthalone pigments and combinations thereof.
11. soft focus composition as claimed in claim 9, wherein the pigment is selected from titanium oxide, iron oxide, vanadium oxide, oxidation Chromium, manganese oxide, tungsten oxide, cadmium sulfide, zinc sulphide, vulcanization cadmium mercury, iron sulfide, aluminosilicate, aluminium oxide, cerium oxide, spinelle Pigment, lanthanum hexaboride and its mixture or alloy.
12. a kind of personal nursing or cosmetic composition, it includes the soft focus combinations as described in any one of claim 1 to 11 Object.
13. a kind of method providing soft focus effec to object or people comprising apply the group comprising particle to the object or people Close object, when the particle is tested in solvent type cellulose acetate-butyrate priming paint with 10% load, the particle SFFTIt is about 0.35 to about 0.7 and SFFRIt is about 0.4 to about 0.7.
14. method as claimed in claim 13, wherein the particle includes the base material with coating of metal oxides；
The wherein described coating of metal oxides covers about the 50% to about 75% of the surface area of the base material；
The span of the wherein described particle is about 0.1 to about 2.1；And
Wherein about 50% to about 75% particle is strip, and remaining is at least one different shape.
15. the method as described in any one of claim 13 to 14, wherein the composition is applied to the skin of people, wherein Microgroove and wrinkle shows reduction on the skin.
16. the method as described in any one of claim 13 to 15, wherein the composition also includes pigment.
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